2 CIMs should be plenty to lift a robot, as long as they're geared properly. What's the diameter of the pulley on your winch? Is the 60-24 ratio an additional gear down after the ball shifter?
Quote:
Originally Posted by Jon Stratis
Your ratio is waaaaay too low. When we climbed on the pyramid, we used two mini-CIMs in a toughbox mini with a 12.75:1 gear ratio.
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*poke* winch diameter is part of the gear ratio. If they're using the 60:24 3rd stage, then low gear is 20.8 to 1. Which would be plenty on a 1" radius pulley, but completely hopeless on a 6" radius pulley.
Show me the mentor who has never built a bad robot and I'll show you either a new mentor, a liar, or Andy Baker. - Andrew Schreiber [more] 
10-02-2016, 23:30
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